There are more than 200 species of hibiscus. The type used for tea is Abelmoschus or Sabdariffa. Hibiscus is rich in Vitamin A and C and beta-carotene making it a good antioxidant. Many purport that its health benefits are:
-Replaces electrolytes and quenches thirst during and after athletic endeavors.
-Eases symptoms of colds, flu and coughs

If you are using hibiscus petals in a tea and you intend to add milk to the tea, keep the ratio of hibiscus to tea low, as hibiscus will curdle milk.